まく うち弁当 べんとうじゃないです
makunōchibentōjanaidesu

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 幕の内弁当

1. It's not a bento box with a variety of dishes.; It's not a *makunouchi* bento.

Negative
Polite
Casual Register